package demo2;

public class KeyBoard implements IUSB{
   @Override
    public void openDevice() {
       System.out.println("打开键盘");
   }

   public void input() {
       System.out.println("键盘输入");
   }
    @Override
    public void closeDevice(){
        System.out.println("关闭键盘");
    }
}
